fix: adding songs to stations no longer worked

backend/logic/stations.js

@@ -1969,7 +1969,7 @@ class _StationsModule extends CoreClass {
 
 							if (
 								queueAddBeforeAutofilled === true ||
-								queueAddBeforeAutofilled.indexOf(stationId) !== -1
+								(Array.isArray(queueAddBeforeAutofilled) && queueAddBeforeAutofilled.indexOf(stationId) !== -1)
 							) {
 								let position = station.queue.length;